CN215058280U - Dual-power driven four-stage counter-rotating axial-flow fan and ventilation system - Google Patents
Dual-power driven four-stage counter-rotating axial-flow fan and ventilation system Download PDFInfo
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- CN215058280U CN215058280U CN202022644370.2U CN202022644370U CN215058280U CN 215058280 U CN215058280 U CN 215058280U CN 202022644370 U CN202022644370 U CN 202022644370U CN 215058280 U CN215058280 U CN 215058280U
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- 238000009423 ventilation Methods 0.000 title claims abstract description 28
- 230000005540 biological transmission Effects 0.000 claims description 11
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims 1
- 230000002337 anti-port Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
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Abstract
The utility model discloses a double dynamical driven level four is to revolving axial-flow fan and ventilation system belongs to mechanical device technical field. The ventilator comprises a shell, an air inlet cylinder and an air outlet cylinder which are respectively positioned on two sides of the shell, and further comprises two power sources positioned in the shell, wherein the power output end of each power source is connected with a speed changer, each speed changer is provided with two coaxial and counter-rotating power output shafts, and each power output shaft is respectively connected with an impeller. The utility model discloses a ventilation blower sets up to the reversal through the rotation direction with two power supplies, has guaranteed four impeller positive and negative rotations in turn that are close together, has realized efficient multistage disrotatory.
Description
Technical Field
The utility model relates to a ventilation equipment belongs to mechanical device technical field, specifically relates to a double dynamical driven level four disrotatory axial-flow fan and ventilation system.
Background
The ventilator is a machine which increases the pressure of gas and discharges the gas by means of input mechanical energy, and is a driven fluid machine. Ventilators are widely used for ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings, ventilation and draught of boilers and industrial furnaces, cooling and ventilation in air conditioning equipment and household electrical appliances, drying and sorting of grains, wind tunnel wind sources, inflation and propulsion of air cushion boats, and the like.
The contra-rotating axial-flow ventilator converts mechanical energy into gas pressure and kinetic energy through a pair of impellers which rotate in opposite directions, and has the characteristics of high efficiency, high pressure head and low noise.
The ventilation efficiency of the presently disclosed counter-rotating axial-flow ventilator is not high.
The chinese utility model patent (grant No. CN2777249Y, grant No. 2006-5-3) discloses a multistage double-speed contra-rotating axial flow type local ventilator, which comprises two stages, three stages or four stages or even more stages of two-speed motors, wherein the two stages, three stages or four stages of four-stage motors are used as motors for driving the rotation of the impellers, and the impellers of the contra-rotating fans are respectively driven by the two-speed motors and are installed on the same axis, thereby realizing the combination of multiple stages and rotating speeds. However, the above ventilator needs a two-speed motor for each driving impeller, and the structure is complicated in actual installation, which causes inconvenience in use.
Disclosure of Invention
In order to solve the technical problem, the utility model provides a double dynamical driven level four disrotatory axial-flow fan and ventilation system is equipped with two power supplies in this fan to axis of rotation direction of rotation through connecting two power supplies sets up to the reversal, has guaranteed four impeller of overall arrangement compactness in turn just reverse, has realized the multistage disrotatory under big amount of wind, the high wind pressure, and simultaneously, four impellers of two power supply control, it has reduced the number to compare prior art, has simplified whole fan structure.
In order to realize the above-mentioned purpose, the utility model discloses a double dynamical driven level four is to revolving axial-flow fan, it includes the casing, is located respectively the air inlet section of thick bamboo, the play bobbin of casing both sides still including being located two power supplies in the casing, every the derailleur is all connected to the power take off end of power supply, is equipped with two coaxial antiport's power shaft on each derailleur, and an impeller is connected respectively to each power shaft, and per two impellers are located the derailleur homonymy that corresponds the connection, and all impellers are close to the setting.
Furthermore, every the power take off of power supply with all be equipped with the shaft coupling between the derailleur, the power take off of power supply is connected to shaft coupling one end, and the other end is connected the power input of derailleur.
Furthermore, each speed changer comprises a first power shaft, a second power shaft sleeved on the periphery of the first power shaft, n first gears and n +/-1 second gears, wherein the n first gears and the n +/-1 second gears are located between the first power shaft and the second power shaft, n is a positive integer larger than 1, and the power input end of each speed changer is connected with the first power shaft.
Furthermore, a first gear is fixed on the first power shaft, a second gear is fixed on the second power shaft, an nth gear and the first gear are fixed on the same shaft, gear teeth of the first gear are meshed with each other, and gear teeth of the second gear are meshed with each other.
Further, the first gear and the second gear are both cylindrical gears.
Further, a bearing is arranged between the outer side of the first power shaft and the inner side of the second power shaft.
Further, each power shaft is keyed to each impeller.
Further, each power source is respectively connected with a junction box positioned outside the shell.
Further, the power source is a motor, the motor is a single-speed motor or a multi-speed motor, and when the motor is the single-speed motor, the variable-frequency speed regulation device is added.
Furthermore, for better realization the utility model discloses the technical purpose, the utility model also discloses a ventilation system, it is including adopting above-mentioned ventilation blower.
Has the advantages that:
1. the utility model discloses a ventilation blower, this ventilation blower inside layout is compact, and just through four impeller positive and negative rotations in turn, has realized the multistage disrotatory under the big amount of wind.
2. The utility model discloses a technical field such as mine ventilation in the pit and tunnel ventilation can be used to the ventilation blower.
Drawings
Fig. 1 is a left side view of a ventilator designed by the present invention;
FIG. 2 is a front view of the ventilator of FIG. 1;
FIG. 3 is a partial cross-sectional view of the transmission of FIG. 2;
wherein, the numbering of each part in the above-mentioned figure is as follows:
a housing 1 (inner housing 1a, outer housing 1 b);
a lifting lug 2;
a ground margin 3;
an air inlet drum 4;
an air outlet cylinder 5;
a filter screen 6;
a dome 7;
a power source 8;
a coupling 9;
a transmission 10 (a power input end 10a, a first power shaft 10.1, a second power shaft 10.2, a first gear 10.3 (wherein: the first gear 10.3a, the nth gear 10.3b), a second gear 10.4 (wherein: the (n +/-1) th gear 10.4a, the first gear 10.4 b));
an impeller 11;
a wire box 12;
a flange 13.
Detailed Description
The utility model discloses a solve the ventilation of multistage disrotatory axial-flow fan among the prior art, the wind pressure can not obtain the technical problem guaranteed simultaneously with structural configuration, a double dynamical driven level four disrotatory axial-flow fan is provided, be equipped with two power supplies in this ventilation blower, and set up to the reversal through the axis of rotation direction of rotating that connects two power supplies, the impeller of having guaranteed four overall arrangement compactions is positive reverse in turn, multistage disrotatory under the big amount of wind has been realized, and simultaneously, four impellers of two power supply control, compare prior art and reduced the number, whole ventilation blower structure has been simplified.
For better explanation of the present invention, the main contents of the present invention will be further explained below with reference to specific examples, but the present invention is not limited to the following examples.
Example 1
The embodiment discloses a double-power-driven four-stage counter-rotating axial-flow fan, as shown in fig. 1, the fan comprises a shell 1 enclosed by an inner shell 1a and an outer shell 1b, the inner shell 1a and the outer shell 1b are fixedly connected through a flange 13, a lifting lug 2 and a wire box 12 are arranged at the top end of the outer side of the shell 1, and a ground pin 3 is arranged at the bottom end of the outer side of the shell 1.
As can be seen from fig. 2, an air inlet cylinder 4 and an air outlet cylinder 5 are respectively arranged at the left end and the right end of the outer shell 1b, a filter screen 6 and a dome 7 are arranged in the air inlet cylinder 4, and a dome 7 is also arranged in the air outlet cylinder 5; wherein the filter screen 6 is used for preventing overlarge foreign matters from entering the interior of the ventilator to damage the impeller.
Meanwhile, be located between air inlet cylinder 4, the play dryer 5 still be equipped with two power supplies 8 in the casing 1, the utility model discloses preferred power supply 8 is the motor, and symmetric distribution is at the inside left and right ends of casing 1, and simultaneously, this motor is multispeed motor or single-speed motor plus variable frequency speed device, thereby the purpose that adopts multispeed motor or single-speed motor plus variable frequency speed device is realized adjusting the ventilation blower rotational speed and adjusts its flow and wind pressure. The power input end of each motor is connected with a wire box 12, specifically, the motors are connected with a wire box 12 arranged on the housing 1 through metal pipes, the power output end of each motor is connected with one end of a coupler 9, the other end of the coupler 9 is connected with the power input end 10a of a transmission 10, each transmission 10 is provided with two coaxial and counter-rotating power shafts, such as a first power shaft 10.1 and a second power shaft 10.2 sleeved on the periphery of the first power shaft 10.1, one end of the first power shaft 10.1 is connected with the power input end 10a of the transmission 10, the other end is connected with an impeller 11, the second power shaft 10.2 depends on a gear positioned between the first power shaft 10.1 and the second power shaft 10.2, so as to realize power transmission, one end of the second power shaft 10.2 is also connected with an impeller 11, and the two impellers 11 are positioned at the same side of the transmission 10, and each power shaft is keyed to each of said impellers 11, while all the impellers 11 are arranged close to each other. It can be known in combination with fig. 2, the utility model discloses a four impeller 11 are located between two derailleurs 10, four 11 overall arrangement of impeller is compact to because the coaxial antiport between first power axle 10.1 and the second power axle 10.2, through controlling the turning to of two motors on the contrary, make four impeller 11 in turn just positive and negative rotations in close proximity together, realized the multistage disrotatory under big amount of wind, the high wind pressure.
The utility model discloses a realize the coaxial antiport between first power axle 10.1 and the second power axle 10.2, at each still set up the gear in the derailleur 10, realize coaxial reversal through gear drive.
Specifically, as can be seen from fig. 3, the present invention selects to set n first gears 10.3 and (n ± 1) second gears 10.4 between each of the first power shaft 10.1 and the second power shaft 10.2, where n is a positive integer greater than 1, where a first gear 10.3a is fixed on the first power shaft 10.1, a second gear 10.4a is fixed on the second power shaft 10.2, a first gear 10.3b and a second gear 10.4b are fixed on the same shaft, teeth of the first gears 10.3 are engaged with each other, and teeth of the second gears 10.4 are engaged with each other. And the first gear 10.3 and the second gear 10.4 are cylindrical gears.
Fig. 3 of the present invention shows that the first gear 10.3 is three, and the second gear 10.4 is two, but the protection scope of the present invention is not limited to this number.
In order to ensure the smooth meshing of each first power shaft 10.1, each second power shaft 10.2 and each gear, the utility model also selects a bearing to be arranged between the outer side of the first power shaft 10.1 and the inner side of the second power shaft 10.2; bearings are also arranged between each gear and the gear shaft thereof, each bearing comprises a rolling bearing but is not limited to a rolling bearing, and the connection mode between each bearing and each shaft is a detachable connection mode such as key connection and the like or a non-detachable fixed connection and the like.
Meanwhile, each motor and each speed changer are fixed inside the shell through the support frames connected with each other.
Therefore, the utility model discloses a ventilation blower has compromise big amount of wind and overall arrangement compactness, possesses practical application and worth.
Example 2
This embodiment has still disclosed a ventilation system, and this ventilation system has adopted the utility model relates to a ventilation blower. This ventilation system accessible realizes switching when big amount of wind and little amount of wind to the difference control of power supply, can satisfy the in-service use demand.
The above examples are merely preferred examples and are not intended to limit the embodiments of the present invention. In addition to the above embodiments, the present invention has other embodiments. All the technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope claimed by the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, the meaning of "more than one" includes 1.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Claims (10)
1. The utility model provides a double dynamical driven level four counter-rotating axial-flow fan, it includes casing (1), is located respectively air inlet cylinder (4), play dryer (5) of casing (1) both sides, its characterized in that: the power transmission device is characterized by further comprising two power sources (8) located in the shell (1), each power output end of each power source (8) is connected with a transmission (10), each transmission (10) is provided with two coaxial reverse-rotating power shafts, each power shaft is connected with an impeller (11), every two impellers (11) are located on the same side of the corresponding connected transmission (10), and all the impellers (11) are close to the corresponding arrangement.
2. The hybrid-driven four-stage counter-rotating axial-flow fan of claim 1, characterized in that: every the power take off of power source (8) with all be equipped with shaft coupling (9) between derailleur (10), the power take off of power source (8) is connected to shaft coupling (9) one end, and the other end is connected the power input end (10 a) of derailleur (10).
3. The hybrid-driven four-stage counter-rotating axial-flow fan of claim 2, characterized in that: each speed changer (10) comprises a first power shaft (10.1), a second power shaft (10.2) sleeved on the periphery of the first power shaft (10.1), n first gears (10.3) and n +/-1 second gears (10.4) located between the first power shaft (10.1) and the second power shaft (10.2), wherein n is a positive integer greater than 1, and a power input end (10 a) of each speed changer (10) is connected with the first power shaft (10.1).
4. The hybrid-driven four-stage counter-rotating axial-flow fan of claim 3, characterized in that: the first gear (10.3 a) is fixed on the first power shaft (10.1), the (n +/-1) th gear (10.4 a) is fixed on the second power shaft (10.2), the nth gear (10.3 b) and the first gear (10.4 b) are fixed on the same shaft, gear teeth of the first gear (10.3) are meshed with each other, and gear teeth of the second gear (10.4) are meshed with each other.
5. The hybrid-driven four-stage counter-rotating axial-flow fan of claim 3 or 4, characterized in that: the first gear (10.3) and the second gear (10.4) are both cylindrical gears.
6. The hybrid-driven four-stage counter-rotating axial-flow fan of claim 3 or 4, characterized in that: and a bearing is arranged between the outer side of the first power shaft (10.1) and the inner side of the second power shaft (10.2).
7. The hybrid-driven four-stage counter-rotating axial-flow fan of claim 1, characterized in that: each power shaft is keyed with each impeller (11).
8. The hybrid-driven four-stage counter-rotating axial-flow fan of claim 1, characterized in that: each power source (8) is respectively connected with a junction box (12) positioned on the outer side of the shell (1).
9. The hybrid-driven four-stage counter-rotating axial-flow fan of claim 1, characterized in that: the power source (8) is a motor which is a single-speed motor or a multi-speed motor, and when the motor is the single-speed motor, a variable frequency speed regulating device is added.
10. A ventilation system characterised in that it includes the use of a ventilator as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022644370.2U CN215058280U (en) | 2020-11-16 | 2020-11-16 | Dual-power driven four-stage counter-rotating axial-flow fan and ventilation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022644370.2U CN215058280U (en) | 2020-11-16 | 2020-11-16 | Dual-power driven four-stage counter-rotating axial-flow fan and ventilation system |
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| Publication Number | Publication Date |
|---|---|
| CN215058280U true CN215058280U (en) | 2021-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022644370.2U Active CN215058280U (en) | 2020-11-16 | 2020-11-16 | Dual-power driven four-stage counter-rotating axial-flow fan and ventilation system |
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| CN (1) | CN215058280U (en) |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240624 Address after: 810, 8th Floor, Building 10, Courtyard 1, Tianxing Street, Fangshan District, Beijing, 102400 Patentee after: Beijing Zhichanhui Technology Co.,Ltd. Country or region after: China Address before: 432000 No. 272 traffic Avenue, Hubei, Xiaogan Patentee before: HUBEI ENGINEERING University Country or region before: China |
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| TR01 | Transfer of patent right |